Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements and condensed footnotes have been prepared in accordance with the applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. Accordingly, they do not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements due to the permitted exclusion of certain disclosures for interim reporting. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary under GAAP for fair statement of results for the interim periods presented have been included. As a result of displaying amounts in millions, rounding differences may exist in the consolidated financial statements and footnote tables. The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or for other interim periods or future years. The condensed consolidated balance sheet as of December 31, 2020 is derived from audited consolidated financial statements; however, it does not include all of the information and footnotes required by GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2020, which was filed with the SEC on February 12, 2021.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements have been prepared in conformity with GAAP and include our accounts and the accounts of our wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated upon consolidation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, as well as reported amounts of revenues and expenses during the reporting period. Such management estimates and assumptions include, but are not limited to, standalone selling price for each distinct performance obligation included in customer contracts with multiple performance obligations, the period of benefit for deferred commissions, valuation of intangible assets, the useful life of property and equipment and identifiable intangible assets, stock-based compensation expense and income taxes. Actual results could differ from those estimates. We assessed the impact of COVID-19 on the estimates and assumptions and determined there was no material impact.
Concentration of Credit Risk and Significant Customers	Concentration of Credit Risk and Significant CustomersCredit risk arising from accounts receivable is mitigated to a certain extent due to our large number of customers and their dispersion across various industries and geographies. As of September 30, 2021, we had one customer, a channel partner, that represented 22% of our accounts receivable and no customers that individually exceeded 10% of our total revenues in any of the periods presented. As of December 31, 2020, there were no customers that represented more than 10% of our accounts receivable balance. For purposes of assessing concentration of credit risk and significant customers, a group of customers under common control or customers that are affiliates of each other are regarded as a single customer.
Accounting Pronouncement Adopted in 2021 and Recently Issued Accounting Pronouncement Pending Adoption	Accounting Pronouncement Adopted in 2021 Income taxes In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2019-12, “Income Taxes (“Topic 740”): Simplifying the Accounting for Income Taxes,” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and amending existing guidance to improve consistent application. Most amendments within this standard are required to be applied on a prospective basis, while certain amendments must be applied on a retrospective or modified retrospective basis. We adopted this standard on a prospective basis as of January 1, 2021. The adoption of this standard did not result in any material impact on our condensed consolidated financial statements upon adoption. Recently Issued Accounting Pronouncement Pending Adoption Debt with Conversion Options In August 2020, the FASB issued new guidance to simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The standard eliminates beneficial conversion feature and cash conversion models resulting in more convertible instruments being accounted for as a single unit; and simplifies classification of debt on the balance sheet and earnings per share calculation. This new standard is effective for our interim and annual periods beginning January 1, 2022 and earlier adoption is permitted. Amendments within this standard are required to be applied on a retrospective or modified retrospective basis. We are currently evaluating the impact of the adoption of this standard on our condensed consolidated financial statements.
Fair Value Measurements	We determine the fair value of our security holdings based on pricing from our service providers and market prices from industry-standard independent data providers. Such market prices may be quoted prices in active markets for identical assets (Level 1 inputs) or pricing determined using inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs), such as yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures.
Legal Proceedings	From time to time, we are party to litigation and other legal proceedings in the ordinary course of business. While the results of any litigation or other legal proceedings are uncertain, management does not believe the ultimate resolution of any pending legal matters is likely to have a material adverse effect on our financial position, results of operations or cash flows, except for those matters for which we have recorded a loss contingency. We accrue for loss contingencies when it is both probable that we will incur the loss and when we can reasonably estimate the amount of the loss or range of loss. Generally, our subscription agreements require us to defend our customers for third-party intellectual property infringement and other claims. Any adverse determination related to intellectual property claims or other litigation could prevent us from offering our services and adversely affect our financial condition and results of operations. Indemnification Provisions Our agreements include provisions indemnifying customers against intellectual property and other third-party claims. In addition, we have entered into indemnification agreements with our directors, executive officers and certain other officers that will require us, among other things, to indemnify them against certain liabilities that may arise as a result of their affiliation with us. We have not incurred any costs as a result of such indemnification obligations and have not recorded any liabilities related to such obligations in the condensed consolidated financial statements.